My son is almost 5 months and about 3.5 weeks ago he began waking every 2 hours. I thought maybe he was teething… would just pat his butt and he would go to bed. Now it’s like he wants to be rocked in order to go to bed will wake up like every 3-4 wanting to be rocked…. I’m exhausted… any help? We Co sleep.. he used to sleep like 9:30-4 and now it’s just taken a turn ahhhhh.